Merge tag 'u-boot-atmel-fixes-2021.01-b' of https://gitlab.denx.de/u-boot/custodians...
[platform/kernel/u-boot.git] / board / toradex / colibri-imx8x / colibri-imx8x.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2019 Toradex
4  */
5
6 #include <common.h>
7 #include <cpu_func.h>
8 #include <init.h>
9
10 #include <asm/arch/clock.h>
11 #include <asm/arch/imx8-pins.h>
12 #include <asm/arch/iomux.h>
13 #include <asm/arch/sci/sci.h>
14 #include <asm/arch/sys_proto.h>
15 #include <asm/gpio.h>
16 #include <asm/io.h>
17 #include <env.h>
18 #include <errno.h>
19 #include <linux/libfdt.h>
20
21 #include "../common/tdx-cfg-block.h"
22
23 DECLARE_GLOBAL_DATA_PTR;
24
25 #define UART_PAD_CTRL   ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
26                          (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
27                          (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
28                          (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
29
30 static iomux_cfg_t uart3_pads[] = {
31         SC_P_FLEXCAN2_RX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
32         SC_P_FLEXCAN2_TX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
33         /* Transceiver FORCEOFF# signal, mux to use pull-up */
34         SC_P_QSPI0B_DQS | MUX_MODE_ALT(4) | MUX_PAD_CTRL(UART_PAD_CTRL),
35 };
36
37 static void setup_iomux_uart(void)
38 {
39         imx8_iomux_setup_multiple_pads(uart3_pads, ARRAY_SIZE(uart3_pads));
40 }
41
42 void board_mem_get_layout(u64 *phys_sdram_1_start,
43                           u64 *phys_sdram_1_size,
44                           u64 *phys_sdram_2_start,
45                           u64 *phys_sdram_2_size)
46 {
47         u32 is_dualx = 0, val = 0;
48         sc_err_t scierr = sc_misc_otp_fuse_read(-1, 6, &val);
49
50         if (scierr == SC_ERR_NONE) {
51                 /* DX has two A35 cores disabled */
52                 is_dualx = (val & 0xf) != 0x0;
53         }
54
55         *phys_sdram_1_start = PHYS_SDRAM_1;
56         if (is_dualx)
57                 /* Our DX based SKUs only have 1 GB RAM */
58                 *phys_sdram_1_size = SZ_1G;
59         else
60                 *phys_sdram_1_size = PHYS_SDRAM_1_SIZE;
61         *phys_sdram_2_start = PHYS_SDRAM_2;
62         *phys_sdram_2_size = PHYS_SDRAM_2_SIZE;
63 }
64
65 int board_early_init_f(void)
66 {
67         sc_pm_clock_rate_t rate;
68         sc_err_t err = 0;
69
70         /*
71          * This works around that having only UART3 up the baudrate is 1.2M
72          * instead of 115.2k. Set UART0 clock root to 80 MHz
73          */
74         rate = 80000000;
75         err = sc_pm_set_clock_rate(-1, SC_R_UART_0, SC_PM_CLK_PER, &rate);
76         if (err != SC_ERR_NONE)
77                 return 0;
78
79         /* Set UART3 clock root to 80 MHz and enable it */
80         rate = SC_80MHZ;
81         err = sc_pm_setup_uart(SC_R_UART_3, rate);
82         if (err != SC_ERR_NONE)
83                 return 0;
84
85         setup_iomux_uart();
86
87         return 0;
88 }
89
90 #if IS_ENABLED(CONFIG_DM_GPIO)
91 static void board_gpio_init(void)
92 {
93         /* TODO */
94 }
95 #else
96 static inline void board_gpio_init(void) {}
97 #endif
98
99 #if IS_ENABLED(CONFIG_FEC_MXC)
100 #include <miiphy.h>
101
102 int board_phy_config(struct phy_device *phydev)
103 {
104         if (phydev->drv->config)
105                 phydev->drv->config(phydev);
106
107         return 0;
108 }
109 #endif
110
111 int checkboard(void)
112 {
113         puts("Model: Toradex Colibri iMX8X\n");
114
115         build_info();
116         print_bootinfo();
117
118         return 0;
119 }
120
121 int board_init(void)
122 {
123         board_gpio_init();
124
125         return 0;
126 }
127
128 /*
129  * Board specific reset that is system reset.
130  */
131 void reset_cpu(ulong addr)
132 {
133         /* TODO */
134 }
135
136 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
137 int ft_board_setup(void *blob, struct bd_info *bd)
138 {
139         return ft_common_board_setup(blob, bd);
140 }
141 #endif
142
143 int board_mmc_get_env_dev(int devno)
144 {
145         return devno;
146 }
147
148 int board_late_init(void)
149 {
150 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
151 /* TODO move to common */
152         env_set("board_name", "Colibri iMX8QXP");
153         env_set("board_rev", "v1.0");
154 #endif
155
156         return 0;
157 }